| 摘要 |
<p>This apparatus relates to vessels composed of an inner casing (3), of an outer casing (4) and of at least one metal base (5-10) which comprises a cylindrical endpiece arranged substantially in the longitudinal axis of the vessel.
<??>According to the invention, it comprises, on each end piece (7), on the one hand a frustoconical metal cup (22) of the same conicity as the base of the endpiece and of an outside diameter at least equal to that of this base, this cup being fixed to a bush (22a) screwed onto a thread (25) formed on the outer part of the corresponding endpiece, on the other hand, a washer (23) made of elastic material, interposed between the cup and the outer face of the end of the vessel, and furthermore a lock nut (24) screwed onto the end piece.
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